February 22, 2017

Homework Help: math

Posted by jerson on Thursday, April 22, 2010 at 6:25am.

A local movie theater found that if the admission was $13, the attendance was about 1900 customers per day. When the price of admission was dropped to $7, attendance increased to about 3000 per day. Write a linear equation for the attendance in terms of price, p. (A=mp+b)

Ok this is what i got

= -550/3

And it says the answer is

I'm confused with how they got 12850/3 instead of 9050/3 because if you add 1900 and 7150 that's what u get..

thanks in advance

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